I know this will sound wacky, but bare with me here, in 1859 a man named Walter Murray Gibson joined the LDS church and talked church president Brigham Young into sending him out to see if some where in the Pacific would be good for settling the Mormons, Gibson was likely crazy but was very very good at talking himself up, based on his own charms he made himself Prime Minster of Hawaii and got Hawaii nearly into a war with Germany over Samoa, but back to the Mormons, in OTL Gibson went to Hawaii and tried to set himself up as God on Earth among the small number of native Mormons on the Island of Lānaʻi, when the Church learned he was buying up land in his name and not the Church's they excommunicated him, but what if rather than Hawaii Gibson went to New Guinea (something he talked about with Young) it was closer to Gibson's old grounds in Java (where the Dutch had put him in jail for trying to start a revolt there) and what if Gibson had managed to keep his need for personal power for long enough to use his great powers of persuasion to talk the Church into leaving America and alighting out for New Guinea?